Калькулятор IP подсетей

27.54.128.0-27.54.138.255

27.54.128.0-27.54.135.255
27.54.128.0/21

27.54.136.0-27.54.137.255
27.54.136.0/23

27.54.138.0-27.54.138.255
27.54.138.0/24